Question

multiple choice 10 points
when atherosclerosis weakens an artery wall and causes it to stretch, what has occurred?
○ stroke
○ thrombosis
○ aneurysm
○ coronary heart disease
2 multiple choice 10 points
which of the following is not an effect of sleep deprivation?
○ increased irritability
○ reduced motivation
○ lowered anger threshold

Explanation:

Question 1

• A stroke is a disruption of blood flow to the brain.
• Thrombosis is the formation of a blood clot.
• An aneurysm is the abnormal stretching of an artery wall due to weakened structure (like from atherosclerosis).
• Coronary heart disease affects coronary arteries (heart - related), not the general artery wall stretching described. So the correct option is the one related to artery wall stretching from weakened structure.

Answer:

C. aneurysm

Question 2

(Note: Since the last option is cut off, but based on typical sleep deprivation effects: increased irritability, reduced motivation, and lowered anger threshold are effects. If we assume the missing option is something not an effect, but with given options visible, if we consider the visible ones: increased irritability, reduced motivation, and lowered anger threshold are effects of sleep deprivation. But since the last option is missing, but if we have to choose from visible, but likely the missing option is the non - effect. However, with the given visible options, all three (increased irritability, reduced motivation, lowered anger threshold) are effects. So the answer would be the option that is not among these (the cut - off one). But since we can't see it, if we assume the options are as given (with one missing), but based on standard knowledge, sleep deprivation causes increased irritability, reduced motivation, and lowered anger threshold. So the non - effect would be the unshown option. But if we have to choose from the visible, there's a mistake. However, likely the intended answer is that the non - effect is the one not related, but with the given visible, we can't fully determine. But assuming the last option is something like "improved concentration" (which is not an effect), but since it's cut off, we can't be sure. But based on the visible, the three shown are effects. So the answer would be the fourth option (the cut - off one). But since we can't see it, we'll proceed with the knowledge: sleep deprivation leads to increased irritability, reduced motivation, and lowered anger threshold. So the non - effect is the option that is not these. If we assume the missing option is the answer, but since it's not visible, we can't provide the exact option label. But if we consider the question as is, and the visible options are all effects, the answer is the fourth option (the one not shown in full).